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Finding the Fourth Proportional to 71,316.30, 106,974.45 and 36,324.30

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Solution

The fourth proportional to 71,316.30, 106,974.45 and 36,324.30 is: 54,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.30 : 106,974.45 = 36,324.30 : x
  2. Step 2: Convert to fraction form
    71,316.30/106,974.45 = 36,324.30/x
  3. Step 3: Cross multiply
    71,316.30x = 106,974.45 × 36,324.30
  4. Step 4: Simplify right side
    71,316.30x = 3,885,772,014.14
  5. Step 5: Solve for x
    x = 3,885,772,014.14/71,316.30
  6. Step 6: Final answer
    x = 54,486.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.